Clencher-tire and securing-lug therefor.



. M. R. HUTOHISON. GLINOHER TIRE AND snotmme we THEREFOR.

APPLICATION FILED NOV. 20, 1908. I 1,038,143, Patented Sept. 10, 1912.

3 SHEETS-SHEET 1.

IN [/15 IV 70/? 1% a Arron/45 M. R. HUTOHISON. GLINCHERTIRE AND SECURINGLUG THEREFOR.

APPLIUATION PILEDJIOV. 20, 1908.

Patented Sept. 10, 1912 W/TNESSES Mzllerfleasv a. MATT-DEWEY M. R.HUTOHISON. GLINOHER TIRE AND SECURING LUG THEREFOR.

APPLICATION FILED NOV. 20, 190B //v m ron jlillerflease Hutclwasan 3SHBETS-SHEBT 3.

Patented Sept. 10,1912.

BY ATTORNEY UNITED STATES PATENT QEEIC MILLER. REESE mi'rcnrson, orsummr'r, NEW JERSEY.

' oLENcnEa-rmE am) SECUBING LUG 'rn-EEEEon.

Specification 1; Letter: e,

PatentedSept. 10,1912.

Application flledflovember 1908. Serial No. 463,695.

. pneumatic' tires of the type in which an outer shoe approximately Ushaped in crosssection is clenched to the wheel mm by means ofmarginahprojections or annular beads adapted to. hook undercorresponding 1nturned annular lips-0n the rim.- The shoe is flexible,butrelatively hard and inelastic so as to afford durable covering andconfin-' ing-means for a more elastic inner tube containing air underhigh pressure.

"My present invention includes a t1re. o f the above t pe, in combmationw1th a @911:

tinuous we ging strip held inwedgin relation between the innermarginalwalls of the shoe of the tire by a eripheral tension longitudinally. ofthe strip. The strip is provided with overlapped ends, and referablywith a take-up and means for 00king the same against circumferentialenlargement when 1n use.

Having thus described something of the' nature and objects of myinvention, I will describe certain practical embodiments thereof inconnection with the accompany-- ingdrawings, in whichigure 1 is anelevation of a olenoher tire and rim adapted for the use of myinvention; Fig. 2 is a vertical section transversely of the tlre takenon the line 2-2, Fig. 1; Fig. 3 is a section partly on the line 33,

- Fig. 2, but showing adjacent ends of the lug and the take up therefor.Fig. 4 isa vertical section taken on the line 4-4, Fig. 2, showing thelockin means for the lug removed and a wrenc 1 in position for operatingthe take up. Fig. 5 is a section on the same plane, but showing meansfor anchorin the lug adjacent the valve stem. 4

he parts of the wheel shown comprise a rim' 1, which in this case is ofthe general form commonly employed fordetachable rims, though so far asconcerns my present invention it is not material whether the rim bedetachable or not. In any case, the outer side of the rim is formed withiii-turned edges forming opposite locking lips 2, .2. I

The covering or shoe 3 is of any known or, desired type and is providedwith ribs or locking projections 4, 4, adapted to engage 0 the in-turnedribs 2-2 on the rim.., The inner tube 5 is of any known or desiredconstruction. When this tube is inflated, the ribs 4, 401 the shoeare-held by the air pressure in engagement with the ribs 22. 5

The tire lug 6 has the cross-sectional shape -.indicated in Fig. 2. Thisshape and also the manner-of the1engagement of the lug with the shoe'for'wedging or locking the latter to the -rirn, may be much the same'asin the .case of the short lugs now common and well 1 known in-the art.In my device, however,- the lug extends ar'ound'the periphery ofthewheel. Where the lug comprises a continn-Ij-f gous bandofchannel'iron, it is anchored adjacent the valve stem. on one side-ofthe wheel, as indicated at 8, and extends around to the j oin't at 9 onthe diametrically opposite side of the wheel, the cross-section beingpreferably unitorm entirely around the circumference', except'at thejoint, where the meeting ends are cutaway and overlapped, as indicatedat 10,11, Fig. 3. At this point the overlapped portions are completelyinclosed in a sheath 12, which has substan-- tially the same externaland internal contours as has the lug strip inclosed thereby. This sheath12 thus serves as the lug at the point in the pelpiphery where theoverlap occurs. From tand overlapped portions 10, 11 of the ln strip areformed with racks 13, 14 engaged by a pinion 15, which is journaled inthe inc o sing sheath 12 and is integral with or keyed to a stud 16,which may be rotated in the manner hereinafter described in ogder tooperate the pinion to take up the overlap ping sections ofthelug strip.The stud 16 is squared on the outside, as shown in Fig.

other polygonal or irregular cross-section capable of ,serving the samefunction may I -be employed. .It will. be understood that when thewasher 17 is in the recess 18, the} pinion .15 is locked, therebyholdingthe;

racks 13 and 14 and, through them, the end 17,10

sections 10, 11 of the lug 1n fixed relation. When the pinion is to beoperated, the

ese figures, it will be seen 90 that the adjacent edges of the cut awaywasher 17 must be removed from a strip of leather 19', which'iscontinuous inner wall of the shoe, as indicatedat- 20, '20, Fig.2,thereby effectually masking the ed e of the lug strip and alsolafi'ordinan'f 1 adt it onal supporting strength throu out;

,aare:

' .tion of the shoe such as could disengage it the region of the shoewhere the thinnest andweak'est.

I. prefer to make the lug strip of"elasticj material having anormalcurvature which will cause the strip when unlocked to open;automatically to the maximum diameter de-- arts. 18, the wrench.'27'is"unscrewed anda reartsas above described, may be as and locked in theposition shown 20 in Fig. 2 in the following manner: One.

' locking bead 4 of the shoe 3 is assembled in sired for assembling ofthe The semble engagement with one rib 2 of the rim 1.

The lug strip in its normal expandedcondi tion is placed against theinner face of the.

shoe on the side thus interlocked. The

ner tube 5 is inserted through the openin on the side where the shoe'isstill detachei from the rim. The material of the inner air tube isdistributed with the usual care and precaution commonly employed in thiscon-' nection. The valve stem indicated at 21, Fig. 5, is insertedthrough the opening 22 in the lug strip and through the correspondingopening 23 in the rim; The anchoring bO' t side of'the shoe throng 24 ofthe lug stri 6 is inserted in the opening 25 located in t e rim 1adjacent the valve stem opening and the securing nut thread 26 ispartially screwed u The inner tube 5-be1ng partiall inflate the otherwhich it was inserted is forced into. clenching engagement with theother rib 2,thereby closing the shoe. The parts are thus in the generalrelation indicated in all of the figures,- except 5 that the inner tubehas'not been fully expanded and the lug strip has not been ti htene ddown into wedging relation. To e ect this part of the operation, thewrench 27, Figs. 1 and 4, is screwed into the threaded 5 recess 28 instud 16, the washer 17 being then in the position indicated in dottedlines, Fig. 4. The wrench is turned to the left, thereby rotating thepinion 15 engaging the racks 14, thus taking up the lug strip, de

creasing its diameter, and soforcing it into additional air wedgingrelation with the inner walls of the shoe. This looks the shoe in theclenching position. lVhen the take up has been operated as far aspracticable 'in this way, pressure is applied in the in y forcing thelug stri into per tube, there the more forceful wed 'ing relation witshoe. When the in 1 pressure of the inner tube has been reached and theoverlapping sections have been fully taken-up, the opthe'recess,- eratorslides as Wlll be explained hereinaften,

The channel of the sheath 12 is'lined 'With' the washer 17 u the squaredshank of the wrench '27, and, ts-it into engaggiient with the squarerecess 18, therebv loc g the pinion against rotation. Ifdesired,'-'additlbnal locki'ngmeans may be employed at this point. venif no locking 'means' whatever is employed at this point,

the su eriority ofmy continuous lug will be evi ent insomuch as itserves as a continuous stay strip and locking means which preventsdeformation of the clenching porfrom the rim or cause pinching of theinner tube, after" the manner possible where widely separated lugs areemployed. The lOCklIlg washer 17 bemg seated in the recess taming screw29 is screwed into the recess 28. The head-3O of said screw bears upon'For convenience in retaining the lug strip in place during removal orinsertlon of an inner tube, I may employa detachable bar v{50, Fig. .5,adapted to be screwed into the recess 61 in the end of bolt 24. Thisassists to retain the relaxed and expanded lug strip in position 'insidethe rim and shoe and to guide the bolt. 24 back into engagement with thehole 25 when the parts are reassembled.- It .will be understood that thelong wrench 27'performs'the same function for the opposite side of .thelug strip.

It will be seen thatin its broadest aspect my invention provides forapproximate continuity of the means for positively locking 'the shoe inclenching engagement with the rim entirely around the periphery andthatthe expression .substantially continuous lug as used hereinmay-include arrange ments wherein the circumferential extent of thediscontinuities or spaces between separate lugs are small as comparedwith the circumferential surface in contact with the ground and throughwhich the side thrust takes effect, provided that in such arrange--ments the member or members performing the function of lugs be held inposition by longitudinal tension around the eriphery, throu h memberslying within t e wedge shape locking groove or channel formed by theinner converging surfaces of the shoe.

I claim:

1. A rim provided with inturned flanges and a pneumatic tire thereforincluding a tire shoe of the clencher type provided with circumferentialribs or projections interlocking with said flanges in combination with acontinuous lug strip of adjustable length adapted to bear againstopposite inner faces of'the shoe and thereby positively lock the shoewith its circumferential projections in clenching relation to theflanges of the rim at substantially all pointsabout the circumferencethereof, said lug strip being provided with a takeup and lock foropening for holding such portion of the lug strip against movementcircumferentially of the rim and'shoe.

"2. A rim provided with inturned flanges and a pneumatic tirethereforincluding a tire shoe of the clencher type provided withcircumferential ribs or projections interlocking with said flanges incombination with a continuous lug strip of adfjust-able length adaptedto bear-against opposite inner faces of the shoe and thereby positively,lock the shoe with its circumferential projections in clenching relationto the-flanges of the'rim at substantially all oints about thecircumference thereof, said lug strip being provided with an-adjustabletake-up: and lock adapted 'to secure-the adjusted portions againstcircumferential movement relatively to each other andyto the rim, saidrim and said lug strip being provided with registering openings for thevalve stem of the pneumatic tube at a point of the circumferenceapgroximately'opposite to'said take-up and ".3. A rim provided withcircumferential locking recesses and a pneumatic tire therefor ncludinga tire shoe of the clencher 0 pic: of this patent may be obtained forfive cents each, by addressing the i; Washington, D. C.

type provided with circumferential ribs or projections interlocking withsaid recesses in combination with a continuous-lug strip adapted to bearagainstopposite inner faces of the shoe and thereby positively lock thecircumferential projections of. the shoe in clenching relation to therecesses of the rim at substantially all points about the circumferencethereof, said lug strip being pro vided with a take-up and lock foradjusting the same, comprising a rotary member and a washer slidable onsaid member but held against rotation thereon, said rim having a lockingrecess adapted to receive said washer and to hold the sameand saidmember against turning, I

4. A rim and tire shoe of the clencher type, provided with interlockingcircumferential ribs or projections, in combination with a continuouslug strip provided with toothed overlapped ends, a rotary toothed memberfor taking up said ends, and a washer slid-able on said member but heldagainst rotation thereon, said rim having a locking recess adapted torecelve said washer and to hold the same and said mem- 60 ber againstturning.

Signed at New York city, in the county of New York and State of NewYork, this nineteenth day of November, A. D. 1908.

MILLER REESE HUTCHISON. Witnesses:

M. L, BRowNE, IRVING M. OBRIEGHT.

Commissioner of Patents,

